i just repair my car a week ago i installed the catalytic converter and the engine light back on. the code was po420. what you think i can do?
Jul 5, 2016 at 1:52 AM
catalytic converter
MILDRED COTTO
- MEMBER
- 1 POST
the code has to be removed with a scanner if that is the problem. it can be an air leak as well in front of converter or the O2 sensor may be bad.
Jul 5, 2016 at 2:24 AM
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